1. Solve: 6 yd. 9 ft. 4 in. x 2 = A. 12 yd. 18 ft. 8 in.
B. 18 yd. 12 ft. 8 in.
C. O yd. 18 ft. 8 in.
D. 7 yd. O ft. 8 in.

A.

Step-by-step explanation:

6*2 = 12

9*2 = 18

4*2 = 8

Answer is 12 yd. 18 ft. 8 in.

70

step-by-step explanation:

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0